Auxiliary surveying and mapping tool for trimming large-size aircraft composite airfoil skin

Abstract

The utility model discloses an auxiliary surveying and mapping tool, particularly discloses an auxiliary surveying and mapping tool for trimming a large-size aircraft composite airfoil skin, and belongs to the technical field of aviation equipment production process equipment design and manufacturing. The auxiliary surveying and mapping tool for trimming the composite airfoil skin of the large-size aircraft is convenient to construct and operate and relatively high in line drawing accuracy. The auxiliary surveying and mapping tool comprises a scriber support, a measuring assembly and a pen point supporting and fixing assembly, wherein the pen point supporting and fixing assembly is movably arranged on the scriber support under the cooperation of the measuring assembly; in the trimming process of the composite airfoil skin, the line drawing pen point draws a trimming line and a detection reference line after trimming on the composite airfoil skin through the pen point supporting and fixing assembly under the cooperation of the measuring assembly and the scriber support and with an external tool as a guide basis.

Description

Technical Field

[0001] The utility model relates to an auxiliary surveying and mapping tool, in particular to an auxiliary surveying and mapping tool used for trimming and cutting of composite wing skins of large-size aircraft, and belongs to the technical field of design and manufacturing of aviation equipment production process equipment. Background Art

[0002] Explanation of terms

[0003] ① Directional terms, such as up, down, etc., are used to facilitate the description of the relative positions between components;

[0004] ② Slip refers to horizontal movement along the reference plane;

[0005] ③Measurement, drawing and inspection refer to measurement work, line drawing work and line drawing self-inspection work.

[0006] With the rapid development of the aviation manufacturing industry, tooling equipment / tools are widely used in the aviation manufacturing industry. However, in the operations of positioning holes in parts and components, and repairing the appearance, many tasks cannot be directly completed by tooling equipment, and manual operation to achieve design requirements is still an indispensable working mode.

[0007] In order to better ensure the quality of manual operation, take the Boeing B737 rudder skin trimming as an example. After the parts are assembled, the skin needs to be trimmed according to the positional relationship between the skin and the jig to ensure that the overall dimensions of the product meet the theoretical requirements. Before trimming, drawing a trimming reference line can make the trimming more intuitive; drawing a detection reference line can make the detection data after trimming more accurate.

[0008] Taking the Boeing B737 rudder skin trimming as an example, the skin is 7.3 meters long. The existing manual line drawing method uses the method of first measuring and marking reference points according to the technical requirements, and then connecting the reference points. Such a line drawing method is cumbersome and cannot guarantee the accuracy of the line drawing.

[0009] The existing line drawing operation is that the operator uses a steel ruler to measure and mark reference points on the work surface, and draws lines by connecting the reference points. The existing line drawing operation scheme has the following disadvantages:

[0010] 1) The two operations of measuring and marking reference points and drawing lines between points are inconsistent in the selected references and the line drawing operation error is large, resulting in low line drawing accuracy;

[0011] 2) When manually drawing lines on a non-planar composite skin, the brush moves up and down with the shape of the part, which can easily cause errors in the brush's left and right deviations, further reducing the accuracy of the line drawing;

[0012] 3) It is difficult for a single person to connect points, and usually requires two people to complete it;

[0013] 4) The point-taking and line-connecting operation is cumbersome and inefficient. Utility Model Content

[0014] The technical problem to be solved by the utility model is to provide an auxiliary surveying and mapping tool for trimming and cutting of composite wing skins of large-sized aircraft, which has convenient construction operation and relatively high line drawing accuracy.

[0015] The technical solution adopted to solve the above technical problems is: an auxiliary surveying and mapping tool for trimming of large-size aircraft composite wing skin, the auxiliary surveying and mapping tool includes a marker support, a measuring component and a pen head supporting and fixing component, and the pen head supporting and fixing component is movably arranged on the marker support with the cooperation of the measuring component; during the trimming of the composite wing skin, the marker pen head draws the trimming line and the detection reference line after trimming on the composite wing skin through the pen head supporting and fixing component with the cooperation of the measuring component and the marker support and with the external tooling as the guide basis.

[0016] Furthermore, the measuring assembly includes a measuring ruler and an adjustable slide, the measuring ruler is movably arranged on the marker support through the adjustable slide, and the pen head support fixing assembly is arranged at one end of the measuring ruler.

[0017] A preferred embodiment of the above scheme is that the adjustable slide includes a slide body and a locking screw, a measuring ruler mounting groove is provided on the slide body, the measuring ruler arranged in the measuring ruler mounting groove is loosened and locked by the locking screw, and the adjustable slide is arranged on the marker support so that the position of the slide body can be adjusted.

[0018] Furthermore, the nib supporting and fixing assembly includes a nib limiting block, a nib supporting block and a connecting and fixing bolt. The nib limiting block is provided with a limiting hole adapted to the drawing end of the nib, and the nib supporting block is provided with a supporting hole adapted to the nib body. The nib limiting block and the nib supporting block are detachably fixed on the adjustable slide by connecting and fixing bolts, and the spatial positions of the limiting hole and the supporting hole are adapted to each other.

[0019] A preferred embodiment of the above scheme is that the marker support includes a guide support assembly and a connecting support assembly, the connecting support assembly is fixedly mounted on the guide support assembly, and the measuring assembly is movably arranged on the connecting support assembly; during the trimming process of the composite wing skin, the connecting support assembly can reciprocate on the tooling through the guide support assembly with the external tooling as the guide basis, and the measuring assembly is arranged on the connecting support assembly.

[0020] Furthermore, the guide support assembly includes a support slot and a limit mounting piece. The connecting support assembly is arranged on the outer side of the web of the support slot. The limit mounting piece is movably arranged on the flange of the support slot away from the drawing pen tip. The sliding gap in the support slot is adjusted by the limit mounting piece with the cooperation of the other flange.

[0021] A preferred embodiment of the above scheme is that the limit mounting component includes a group of pressure blocks, two sets of connecting mounting bolts and two pairs of compression springs. The pressure blocks are supported in the support slot by the two sets of connecting mounting bolts, and the two ends of each pair of compression springs sleeved on each set of connecting mounting bolts are respectively connected to the corresponding side flanges of the pressure blocks and the support slot.

[0022] Furthermore, the connecting support assembly includes a measuring slide mounting slot, a mounting plate and a locking screw. The measuring ruler is arranged on the belly plate of the support slot through the mounting plate, and the locking screw is movably arranged on the flange of the slide mounting slot away from the marking pen head.

[0023] The beneficial effect of the utility model is as follows: the technical solution provided by the application is to design a set of auxiliary surveying and mapping tools including a marker support, a measuring component and a pen head support and fixing component, and then the pen head support and fixing component is movably arranged on the marker support in cooperation with the measuring component; in this way, in the process of trimming the composite wing skin, the marker pen head can draw the trimming line on the composite wing skin through the pen head support and fixing component in cooperation with the measuring component and the marker support with the tooling as the guide basis. This changes the existing situation in which the construction operation is inconvenient and the line drawing accuracy is relatively poor due to the fact that the prior art first marks dots and then removes the workpiece for line drawing and trimming. Since the present application supports the marker pen head through the pen head support and fixing component, and in cooperation with the marker support and the measuring component, the line drawing is completed at one time with the tooling as the guide basis, and then it is removed and trimmed, which saves the dotting operation, so the convenience of the line drawing operation can be greatly improved, and the line drawing accuracy can be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of the auxiliary surveying and mapping tool for trimming large-size aircraft composite wing skins according to the utility model;

[0025] Figure 2 for Figure 1 Side view of

[0026] Figure 3 , Figure 4 The utility model is a front view and a side view of a marker support involved in the auxiliary surveying and mapping tool for trimming large-size aircraft composite wing skins;

[0027] Figure 5 , Figure 6 It is a front view and a side view of the assembly of the measuring component and the pen head support and fixing component involved in the auxiliary surveying and mapping tool for trimming large-size aircraft composite wing skin of the utility model;

[0028] Figure 7 , Figure 8The utility model shows a front view and a side view of the auxiliary surveying and mapping tool used for trimming of composite wing skins of large-sized aircraft in a line drawing state.

[0029] Marked in the figure are: drawing pen tip 1, tooling 2, composite wing skin 3, measuring ruler 4, slide body 5, locking screw 6, pen tip limit block 7, pen tip support block 8, connecting fixing bolt 9, support slot 10, pressure block 11, connecting mounting bolt 12, compression spring 13, slide mounting slot 14, mounting plate 15. DETAILED DESCRIPTION

[0030] like Figures 1 to 8 The utility model provides an auxiliary surveying and mapping tool for large-size aircraft composite wing skin trimming, which is convenient to operate and has relatively high line drawing accuracy. The auxiliary surveying and mapping tool includes a marker support, a measuring component and a pen head support and fixing component, and the pen head support and fixing component is movably arranged on the marker support in cooperation with the measuring component; during the composite wing skin trimming process, the marker pen head 1 draws trimming lines on the composite wing skin 3 through the pen head support and fixing component in cooperation with the measuring component and the marker support, with the external tooling 2 as the guide basis. The technical solution provided by the present application is designed by designing a set of auxiliary surveying and mapping tools including a marker support, a measuring component and a pen head support and fixing component, and then the pen head support and fixing component is movably arranged on the marker support in cooperation with the measuring component; in this way, during the composite wing skin trimming process, the marker pen head can draw trimming lines on the composite wing skin through the pen head support and fixing component in cooperation with the measuring component and the marker support, with the tooling as the guide basis. The present invention has changed the existing technology that the workpiece is firstly marked with dots and then removed to draw lines and trim, which causes inconvenient construction operation and relatively poor line drawing accuracy. Since the present application supports the line drawing pen head by a pen head support fixing assembly, with the cooperation of the line drawing device support and the measuring assembly, the line drawing is completed at one time based on the tooling as the guide, and then the workpiece is removed and trimmed, thus eliminating the need for the marking operation, so the convenience of the line drawing operation can be greatly improved, and the accuracy of the line drawing can be significantly improved.

[0031] Accordingly, in order to simplify the structure of each component of the auxiliary surveying and mapping tool of the present application, and facilitate manufacturing, assembly, and subsequent use and maintenance, the measuring assembly described in the present application includes a measuring ruler 4 and an adjustable slide, the measuring ruler 4 is movably arranged on the marker support through the adjustable slide, and the pen head support fixing assembly is arranged at one end of the measuring ruler 4. At this time, the adjustable slide preferably includes a slide body 5 and a locking screw 6, a measuring ruler installation groove is provided on the slide body 5, the measuring ruler 4 arranged in the measuring ruler installation is loosened and locked by the locking screw 6, and the adjustable slide is arranged on the marker support through the slide body 5 in an adjustable position. The pen tip support and fixing assembly described in the present application includes a pen tip limit block 7, a pen tip support block 8 and a connecting and fixing bolt 9. The pen tip limit block 7 is provided with a limit hole adapted to the drawing end of the pen tip, and the pen tip support block 8 is provided with a support hole adapted to the pen tip body. The pen tip limit block 7 and the pen tip support block 8 are detachably fixed on the adjustable slide by the connecting and fixing bolt 9, and the spatial positions of the limit hole and the support hole are adapted to each other. The marker support described in the present application includes a guide support assembly and a connecting support assembly, the connecting support assembly is fixed on the guide support assembly, and the measuring assembly is movably arranged on the connecting support assembly; during the composite wing skin trimming process, the connecting support assembly can reciprocate on the tooling 2 through the guide support assembly with the external tooling 2 as the guide basis, and the measuring assembly is arranged on the connecting support assembly. More specifically, the guide support assembly of the present application includes a support slot 10 and a limit mounting member, the connection support assembly is arranged on the outside of the web of the support slot, the limit mounting member is movably arranged on the flange of the support slot 10 away from the marker pen head 1, and the sliding gap in the support slot 10 is adjusted by the limit mounting member with the cooperation of the other flange. At this time, the limit mounting member preferably includes a group of pressure blocks 11, two sets of connection mounting bolts 12 and two pairs of compression springs 13, the pressure blocks 11 are supported in the support slot 10 by the two sets of connection mounting bolts 12, and the two ends of each pair of compression springs 13 sleeved on each set of connection mounting bolts 12 are respectively connected to the corresponding side flanges of the pressure blocks 11 and the support slot 10. The connection support assembly described in the present application includes a slide mounting slot 14, a mounting plate 15 and a locking screw 6. The measuring ruler 4 is arranged on the belly plate of the support slot 10 through the mounting plate 15, and the locking screw 6 is movably arranged on the flange of the slide mounting slot 14 away from the marker pen head 1.

[0032] In summary, the auxiliary surveying and mapping tool provided by this application solves the following technical problems:

[0033] 1) Unified the benchmarks to provide a basis and guarantee for line drawing;

[0034] 2) Improved the accuracy of line drawing operation;

[0035] 3) The process is simplified and measurement, drawing and inspection can be completed in one step.

[0036] The technical solution of the present application is further described below through specific embodiments:

[0037] The technical solution of the present application comprises a marker support, a marker measuring ruler and a pen head mounting bracket.

[0038] Drawing line parts description:

[0039] The relationship between the Boeing B737 rudder skin and the assembly tooling Figure 7 As shown in the figure, the skin position is lower than the tooling surface, the trimming edge of the skin is perpendicular to the tooling measurement reference surface, and the gap between the trimming edge of the skin and the tooling reference surface is narrow, so the skin shape cannot be trimmed on the tooling jig. The product needs to be moved out of the jig before trimming. In order to ensure the trimming size, it is necessary to use the relationship between the product and the tooling position size before the product is removed from the shelf, draw the inspection reference line and trimming reference line after trimming, and complete the trimming work under the rotating rack.

[0040] Tool Parts Description:

[0041] Marker support: The marker support is the link between the tooling and the marker measuring ruler. The support slot is stuck on the tooling and is clamped on the tooling by the marker clamp. The marker measuring ruler is fixed with the clamping bolt to provide a stable and reliable working reference for the marker measuring ruler relative to the tooling.

[0042] Line drawing measuring ruler: measures the gap value between the tooling reference surface and the measured edge of the skin, and provides support for line drawing.

[0043] Embodiment 1

[0044] a) Place the measuring ruler in the measuring ruler slot of the marker support, tighten the clamping bolt to connect the marker ruler to the marker support. When the marker support is slid, the measuring ruler and the marker support always maintain a positional relationship without change.

[0045] b) Clamp the marker support on the tooling, and under the clamping force of the marker presser, ensure that the marker support is close to the reference surface of the tooling and does not fall off, and can slide freely.

[0046] c) Place the end face of the measuring claw of the measuring ruler close to the measuring reference surface of the tooling, and after zeroing, adjust the measuring ruler to the trimming size. During the line drawing process, the brush is fixed by the brush holder and the line drawing pen head fixing block, and the line drawing pen head is always pressed on the skin surface and will not shake left and right, ensuring the accuracy of line drawing.

[0047] d) Adjust the measuring ruler according to the design requirement value, and lock the measuring ruler after reaching the required value to ensure that the value does not change in subsequent operations.

[0048] e) Place the marker pen head in the marker pen head fixing block hole on the measuring ruler claw. After the marker pen head is fixed by the marker pen holder, the marker pen head slides with the support. The process of the support sliding is the marking process.

[0049] Using the above steps,

[0050] 1) Make full use of the tooling measurement benchmark as the reference surface of the auxiliary line drawing tooling, unify the benchmarks of measurement, drawing and inspection, and ensure the accuracy of line drawing;

[0051] 2) Simplified the line drawing process and improved work efficiency;

[0052] 3) Measurement, drawing and inspection are completed in one step, which ensures the effectiveness of the line drawing operation, reduces line drawing errors and reduces quality costs.

Claims

1. Auxiliary surveying and mapping tool for large-size aircraft composite wing skin trimming, characterized by: The auxiliary surveying and mapping tool comprises a marker support, a measuring assembly and a pen head support and fixing assembly, wherein the pen head support and fixing assembly is movably arranged on the marker support in cooperation with the measuring assembly; during the trimming process of the composite wing surface skin, the marker pen head (1) draws a trimming line on the composite wing surface skin (3) through the pen head support and fixing assembly in cooperation with the measuring assembly and the marker support with an external tooling (2) as a guide.

2. The auxiliary surveying and mapping tool for trimming large-size aircraft composite wing skin according to claim 1, characterized in that: The measuring assembly comprises a measuring ruler (4) and an adjustable slide, wherein the measuring ruler (4) is movably arranged on a marker support via the adjustable slide, and a pen head support fixing assembly is arranged at one end of the measuring ruler (4).

3. The auxiliary surveying and mapping tool for trimming large-size aircraft composite wing skin according to claim 2, characterized in that: The adjustable slide comprises a slide body (5) and a locking screw (6); a measuring ruler installation groove is arranged on the slide body (5); a measuring ruler (4) arranged in the measuring ruler installation groove is loosened and locked by the locking screw (6); and the adjustable slide is arranged on a marker support in an adjustable position through the slide body (5).

4. The auxiliary surveying and mapping tool for trimming large-size aircraft composite wing skin according to claim 2 or 3, characterized in that: The pen tip support and fixing assembly comprises a pen tip limiting block (7), a pen tip supporting block (8) and a connecting and fixing bolt (9); a limiting hole adapted to the drawing end of the pen tip is arranged on the pen tip limiting block (7); a supporting hole adapted to the pen tip body is arranged on the pen tip supporting block (8); the pen tip limiting block (7) and the pen tip supporting block (8) are detachably fixed on the adjustable slide frame by the connecting and fixing bolt (9); and the spatial positions of the limiting hole and the supporting hole are adapted to each other.

5. The auxiliary surveying and mapping tool for trimming large-size aircraft composite wing skin according to claim 4, characterized in that: The marker support comprises a guide support assembly and a connection support assembly, wherein the connection support assembly is fixedly mounted on the guide support assembly, and the measuring assembly is movably arranged on the connection support assembly; during the composite wing surface skin trimming process, the connection support assembly can reciprocate on the tooling (2) by means of the guide support assembly with the external tooling (2) as a guide basis, and the measuring assembly is arranged on the connection support assembly.

6. The auxiliary surveying and mapping tool for trimming large-size aircraft composite wing skin according to claim 5, characterized in that: The guide support assembly comprises a support slot (10) and a limit mounting piece, the connection support assembly is arranged on the outer side of the web of the support slot, the limit mounting piece is movably arranged on the flange of the support slot (10) away from the marker pen head (1), and the sliding gap in the support slot (10) is adjusted by the limit mounting piece in cooperation with the other flange.

7. The auxiliary surveying and mapping tool for trimming large-size aircraft composite wing skin according to claim 6, characterized in that: The position limiting mounting component comprises a group of pressing blocks (11), two sets of connecting mounting bolts (12) and two pairs of compression springs (13); the pressing block (11) is supported in the support slot (10) by the two sets of connecting mounting bolts (12); and the two ends of each pair of compression springs (13) sleeved on each set of connecting mounting bolts (12) are respectively in contact with the corresponding side flanges of the pressing block (11) and the support slot (10).

8. The auxiliary surveying and mapping tool for trimming large-size aircraft composite wing skin according to claim 7 is characterized in that: The connecting support assembly comprises a slide mounting slot (14), a mounting plate (15) and a locking screw (6); the measuring ruler (4) is arranged on the web of the support slot (10) through the mounting plate (15); and the locking screw (6) is movably arranged on the flange of the slide mounting slot (14) away from the marker pen head (1).

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